The Enginetech V4383 exhaust valve features a 1.181" head diameter, 0.2154" stem (5.5mm nominal), and 4.120" overall length with a chrome-plated stem. Fits 2001-2021 Ford/Mazda 2.0L/2.3L/2.5L applications.
Important Notes
- Sold individually as a single valve. Order the quantity required for your engine configuration (typically one per cylinder per valve position).
- Chrome-plated stem provides a hard, low-friction wear surface for extended service life.
- Always verify head diameter, stem diameter, overall valve length, and groove count against the OE valve being replaced before installation - valve dimensions vary across engine families and a visual match alone is not sufficient.
Specifications
| Part Number | V4383 |
| Valve Type | Exhaust Valve |
| Head Diameter | 1.181" |
| Stem Diameter | 0.2154" (5.5mm nominal) |
| Valve Length | 4.120" OAL |
| Stem Finish | Chrome Stem |
| Number of Grooves | 1 |
| Weight | 0.25 lbs |
| OEM Cross-Refs | DNJ Engine Components: EV432, DNJ Rock: EV449, Elgin: E5085, Elgin: E5089, Fed. Mogul: V4718, Ford: 1S7Z6505AA |
Vehicle Fitment
- 2005-2011 Ford 2.0L / 121 DOHC L4 16V "2,N" Duratec Nat. Asp. 87.50mm Bore
- 2003-2009 Ford 2.3L / 138 DOHC L4 16V "Z" Duratec 87.50mm Bore
- 2010-2016 Ford 2.5L / 152 DOHC L4 16V "3,7,A,T" 89.00mm Bore
- 2004-2015 Mazda 2.0L / 1998 DOHC L4 16V LFD 87.50mm Bore
- 2003-2009 Mazda 2.3L / 2261 DOHC L4 16V Natural Asp. 87.50mm Bore
- 2009-2013 Mazda 2.5L / 2488 DOHC L4 16V 89.00mm Bore
- 2010-2021 Ford 2.0L / 121 DOHC L4 16V "2,L,N" Duratec 87.50mm Bore
- 2001-2011 Ford 2.3L / 138 DOHC L4 16V "D,H,Z" Duratec 87.50mm Bore
- 2009-2021 Ford 2.5L / 152 DOHC L4 16V "3,7,A,Z" 89.00mm Bore
- 2001-2010 Mazda 2.3L / 2261 DOHC L4 16V Natural Asp. 87.50mm Bore
- 2009-2012 Mazda 2.5L / 2488 DOHC L4 16V 89.00mm Bore
Product Video
Watch the Enginetech exhaust valve overview: https://youtu.be/G487Dw8HtII
Watch the Enginetech exhaust valve overview: https://youtu.be/eLaQHop7rH8
Enginetech standard valves are stock-replacement engine valves produced from OE grade materials or better, engineered with the production engine rebuilder in mind. Face runout, stem finish, and stem diameter tolerances are held to some of the tightest standards in the internal engine parts industry, and every valve is inspected by on-site engineers against a documented quality plan before it leaves the plant. The line covers domestic, import, and common high-performance applications across a full range of head diameters, stem diameters, and overall lengths, with chrome-plated and nitride-hardened stem finishes available where the engine's operating conditions call for the upgrade. Always verify head diameter, stem diameter, valve length, groove count, and any oversize stem requirement against the original valve being replaced before installing, as multiple valve configurations can share the same vehicle nameplate.
WARNING: This product can expose you to chemicals including lead and nickel, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
